Clock.



J. J. BUSENBENZ.

CLOCK.

APPLICATION FILED APB. 16, 1910.

Patented 001211910.

2 SHEETS-SEEBT l.

#WMM/9% J. J. BUSENBEN Z.

CLOCK.

APPLIUATION FILED APR. 16, 1910.

Patented 0613.25, 1910.

2 SHEETS-SHEET 2.

ka/afan AIENT OFFICE.

JACOB J.' isU'sErnsEivZ.k or CHf'oAGo. ILLINOIS.

.'CiiocK.

Appncanmaiefi .Api-i1 16, 191C. Serial No. 555,784.

To at! if/infini! may concern.

i' ISii*ecifration fiLetters Patent.` i p of lllinoisglnive invented anew and-useful l ,linprovenient inft'loelis.. ot'which the t'ollowing'is a speeitieation. Y f

M v invention relatesl lo an improvement in t ze ela-ss .ol long-periodclocks, meaning` thoee which are adapted' to run with afsinele manualwindingl `for a year or more, in lthe easeotpendulmn-cloelts. f

A known type of .clockin the class .rc- 'terred to.l and upon which inyinvention is especially designedv to atlord an"improve nient, en'iploysaTlialul-wt-nmd primary spril'lg'anotor, o1 the tlat-coil. variety, fforperiodically winding'7 h v ,its'reeoih a similar hut relatively lightspring` which drivesI the flock-train,` fthe power "of which i lighterspring is expended not only for-drivingl the train but also t'orovercomingl theresistanee ot a normally-loelieil release for thespring'- inotor lo enahle the latter to act. By this arrangement, as theunwinding' ot' the stored-po\\'er or primary motor progresses. itsaction heeomes retarded with the result ol varyingl and renderingIinaccurate. the time-lteepineot the eloelt.

'l'he ol ieeti ol2 my invention is to "provide a construction ot' elocl;in the aforesaid elass which shall dispense with all v'resistance' to heovercome, such as the release ahove inentioned, interposed between liheprimary motor and the ehuflg-train other than vthe resistance presentedhy the. lighter traindrivingspring` to winding,` \\"he'reh'vy sui-hwiiulinu as well as the nmvinding'fotl the liohler .springshall becontinuousand imit'oriu. with the advantage ot rendering' the runningotthe clock regular.

.ln the accoinpanying' drawings, Figure l is a ln'ok'en sectional planView of a ,so-called annual clock einhodyingny my improvement; 2 is*ait-enlarged broken sectional view of the train-driving spring device,showing the preferred inanner of `gearing it at; its opposite ends,respectively, to the .spring-motor and train, 'and Fig. 3 is a seetionon line File'. Q. p

.lhe 'clock-case fl, which may involv, any usual or desired general.forni and construetion, contains in one end a frame 5 for holding` thcstored-power motor, usually pro vided in clocks of the present class inthe Yt'orm o't'twvo similar flat spring-coils G and ywith Patented 275,1910.A

T carrying '."orrespoiuling gears S and 9 meshing-with afpinion l()interposed between them and adapted to he wound at keya'rl'iorsll. illprojecting through the case; and.- `detent-ineehanism l'is provided oneaehspring'. ()nl.v lawportion ot' the cloektrain 13 is illustrated,since it maybe ot' ordinary construction,4 presenting no features ofnovelty, and turns lin the usual way shat'ts 'A14' and 1.3 carrying,respectively, the hour and minute glass-covered vdial 1S.

Between the springs tand' there extends from the frame 5 a bearing l!)in which is rigidlycontined one end ot' a cylindrical core. 20Whiehpasses centrally through and thusjournals the pinion l() and itssleeveextension eontined against longitudinal displacement hetweencollarsl '21 and Q2 on v the core. Adjacent to the collar 2'2 the corehas tormed upon it a eylindrieal enlarge ment'l to perform theponer-reducing function hereinafter explained; and the opposite, end ofthe core is rigidly supported in a hearing,` @il on the frame of theclocktrain, adjacent to which it passes centrally through and thusjournals a gear-wheel littL havin;r ay sleeve-extension 132 and meshing'the tirs-t- {Ljear of the train. rlhe, core Is shown curved toward itsend which engages' the wheel 13. owingte the relative disposition ot theparts to attain ycompactnessjwthough otherwise the core might,y hestraight.' A eloselvwound, relatirely-light spiral-spring' Q5 surroundsthe core, with one end secured to the sleeve 10 and its opposite end tothe sleeve 132.- 'l

lVith the motor-springs G and 7 wound np, they eoiiperattnhy theirrecoil-force in l( jradually unwinding'` which may-continue for a yearor more. to continuously and regularly turn they pinion in onedirection. lly so turning" the pinion iti winds and tensions thespring-Q5 throughout its length about the core as far as resultant hinjgiiig it ahout. the enlargement 23 will permit.; and as the windingproceeds at the end of the spring adjacent to the pinion the tensiontoward the opposite end overcomes the resistance ot" and drives theclock-train hy corresl'ionding unwinding of the spring toward that end.Thus the continuous and uniform turning;` of the pinion constantly windsthe relatively light, springy 25 aty one end while it. is unwindine'correspondingly at the opposite end to drive the train; and theenlargen'ient Q3 hands lt and 1T about a.

. movement and lever-movement clocks.

Thile the primary motor is herein described as a pair of coiled springsacting against a pinion 10, and might be one such spring. any suitablevariety of primary motor is contemplated as being within my invention.

What I claim as new and desire to secure by Letters Patent is- 1. In'aclock of the character described, the combination With a primary motorand a clock-train, of a core, a spiral spring about the -core having oneend geared to said motor, for contracting the spring to tension it aboutthe core, and its opposite end geared to the train, and regulating meanscooperating with the spring between its ends to form the train-actuatingspring-section and limit the extent of tensioning said section, for thepurpose set forth. v

2. In a clock of the character described, the combination with a primarymotor and a clock-train, of a score provided With an [SEAL] Correctionin Letters Patent No. 973,854.

enlargement between its ends and a s )iral 'spring about the core andsaid enlargement having one end geared to said motor and its oppositeend geared to the train, for the purpose set forth.

-3. vIn a clock of the character described.,

the combination with a primary motor and a clock-train, of a rigidcylindrical core, a pinion journaled on said core and engaged by saidmotor to be continuously driven thereby, a spiral spring about said corehavingone end connected With the pinion for contracting the spring totension it about the core by the power of said motor, and its oppositeend geared to the train, and regulating means cooperating with thespring between the ends to form the train-actuating spring-section andlimit the extent of tensioning said section, for the purpose set forth:-

4. In a clock of the character described, the combination with a primarymotor and a clock-train, of a stationary cylindrical core provided withan enlargementbetween its ends, a pinion journaled on said core andengaged Iby said motor to be continuously driven thereby, and a spiralspring about said core and enlargement having one end connected with thepinion and its opposite end geared to the train, for the purpose setforth.

`JACOB J. BUSENBENZ. In the presence of- R.- A. RAYMOND, R. A. SCHAEFER.

the said Letters Patent should .be read with this correction thereinthat the same may conform to the record of the case in the PatentOffice.

- Signed and sealedv this 3d day of January, A. D., 1911.

n. n. Moons,

Commissioner of-Patens.

It is hereby certified that in Letters Patent No. 973,854, grantedOctober 25 1910, upon the application of'Jacob J. Busenbenz, ofvChicago.lllinois, for an improvement in ClockS, an error appears in theprinted speciiication requiring correction as tollows: Page 2, line 35,the Word score should read core; and that

